Uentshukumishiteu

In Inuit mythology, Wentshukumishiteu (or Uentshukumishiteu) is a water-elemental spirit which fiercely protected the young of various animal species from human hunters. It is particularly fond of otters. The Inuit say that Wentshukumishiteu is able to travel anywhere on the water and can break through the thickest ice. It can also travel under the ground and through rocks.
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[Native American] The Innu say the evil creature, Uentshukumishiteu, is able to travel anywhere on the water and under the water and it is able to break through the ice. It can also travel under the ground and through rocks.